<template>
  <div class="cart">
    <h4>全部商品</h4>
    <div class="cart-main">
      <div class="cart-th">
        <div class="cart-th1">全部</div>
        <div class="cart-th2">商品</div>
        <div class="cart-th3">单价（元）</div>
        <div class="cart-th4">数量</div>
        <div class="cart-th5">小计（元）</div>
        <div class="cart-th6">操作</div>
      </div>
      <div class="cart-body" v-for="(shopCart,index) in shopCartList" :key="index">
        <ul class="cart-list" v-for="(cartInfo) in shopCart.cartInfoList" :key="cartInfo.id">
          <li class="cart-list-con1">
            <input type="checkbox" name="chk_list" :checked="cartInfo.isChecked" @click="changeOneIsChecked(cartInfo)">
          </li>
          <li class="cart-list-con2">
            <img :src="cartInfo.imgUrl">
            <div class="item-msg">{{ cartInfo.skuName }}</div>
            <!--            <div class="item-msg">米家（MIJIA） 小米小白智能摄像机增强版 1080p高清360度全景拍摄AI增强</div>-->
          </li>
          <li class="cart-list-con3">
            <div class="item-txt">语音升级款</div>
          </li>
          <li class="cart-list-con4">
            <span class="price">{{ cartInfo.cartPrice }}</span>
          </li>
          <li class="cart-list-con5">
            <a href="javascript:void(0)" class="mins" @click="changeNum(cartInfo.skuNum>1?-1:0,cartInfo.skuId)">-</a>
            <input autocomplete="off" type="text"
                   @change="changeNum($event.target.value*1>1?$event.target.value-cartInfo.skuNum:1-cartInfo.skuNum,cartInfo.skuId)"
                   :value="cartInfo.skuNum" minnum="1" class="itxt">
            <a href="javascript:void(0)" class="plus" @click="changeNum(1,cartInfo.skuId)">+</a>
          </li>
          <li class="cart-list-con6">
            <span class="sum">{{ cartInfo.cartPrice * cartInfo.skuNum }}</span>
            <!--            <span class="sum">399</span>-->
          </li>
          <li class="cart-list-con7">
            <a href="#none" class="sindelet" @click="deleteOneGoods(cartInfo.skuId)">删除</a>
            <br>
            <a href="#none">移到收藏</a>
          </li>
        </ul>

      </div>
    </div>
    <div class="cart-tool">
      <div class="select-all">
        <input class="chooseAll" type="checkbox" v-model="isCheckedAll">
        <span>全选</span>
      </div>
      <div class="option">
        <a href="javascript:;" @click="deleteCheckedGoods">删除选中的商品</a>
        <a href="#none">移到我的关注</a>
        <a href="#none">清除下柜商品</a>
      </div>
      <div class="money-box">
        <div class="chosed">已选择
          <span>{{ checkedNum }}</span>件商品
          <!--          <span>0</span>件商品-->
        </div>
        <div class="sumprice">
          <em>总价（不含运费） ：</em>
          <i class="summoney">{{ allPrcie }}</i>
          <!--          <i class="summoney">0</i>-->
        </div>
        <div class="sumbtn">
          <a class="sum-btn" href="###" target="_blank">结算</a>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import {mapState} from 'vuex';

export default {
  name: 'ShopCart',
  data() {
    return {}
  },
  computed: {
    ...mapState({
      shopCartList: state => state.shopcart.shopCartList,
    }),
    //已选择商品数量
    checkedNum() {
      return this.shopCartList.reduce((prev, item) => {
        return prev += item.cartInfoList.reduce((prev1, item1) => {
          if (item1.isChecked) {
            prev1 += item1.skuNum
          }
          return prev1
        }, 0)
      }, 0)
    },
    //已选择商品总价
    allPrcie() {
      return this.shopCartList.reduce((prev, item) => {
        return prev += item.cartInfoList.reduce((prev1, item1) => {
          if (item1.isChecked) {
            return prev1 + item1.skuNum * item1.cartPrice
          }
          return prev1
        }, 0)
      }, 0)
    },
    //全选，全不选
    isCheckedAll: {
      get() {

        // return this.shopCartList.every((item) => {
        //   return item.cartInfoList.every(item1 => {
        //     return item1.isChecked
        //   })
        // })
        return this.shopCartList.every(item => item.cartInfoList.every(item1 => item1.isChecked))&&this.shopCartList.length!==0
      },
      async set(newValue) {
        const isChecked = newValue ? 1 : 0;
        const skuIdList = this.shopCartList.reduce((prev, item) => {
          prev.push(
              ...item.cartInfoList.reduce((prev1, item1) => {
                if (item1.isChecked !== isChecked) {
                  prev1.push(item1.skuId)
                }
                return prev1
              }, [])
          )

          return prev
        }, [])

        try {
          await this.$store.dispatch('getChangeAllIsChecked', {skuIdList, isChecked})
          alert('全选全不选成功')
          this.getShopCartList()
        } catch (error) {
          alert('全选全不选失败')
        }


      },
    }

  },


  methods: {
    getShopCartList() {
      this.$store.dispatch('getShopCartList')
    },
    //点击改变+ - 以及输入改变商品数量
    async changeNum(skuNum, skuId) {
      // skuID	string	Y	商品ID
      // skuNum	string	Y	商品数量
      //                  正数代表增加
      //                  负数代表减少
      try {
        await this.$store.dispatch('addOrUpdateShopCart', {skuId, skuNum})

        alert('改变商品数量成功')

        //发请求更新页面数据，重新更新页面
        this.getShopCartList()
      } catch (error) {
        alert('改变商品数量失败')
      }

    },
    //切换单个商品的选中状态
    async changeOneIsChecked(cartInfo) {
      const skuId = cartInfo.skuId;
      const isChecked = cartInfo.isChecked === 1 ? 0 : 1;
      try {
        await this.$store.dispatch('getChangeOneIsChecked', {skuId, isChecked})
        this.getShopCartList()
        alert('修改单个商品状态成功')
      } catch (error) {
        alert('修改单个商品状态失败')
      }

    },
    //删除单个商品
    async deleteOneGoods(skuId) {
      try {
        await this.$store.dispatch('getDeleteOneGoods', skuId)
        alert('删除单个商品成功')
        this.getShopCartList()
      } catch (error) {
        alert('删除单个商品失败')
      }
    },
    //删除购物车选中商品
   async deleteCheckedGoods() {
      const skuIdList = this.shopCartList.reduce((prev, item) => {
       prev.push(...item.cartInfoList.reduce((prev1, item1) => {
         if (item1.isChecked){
           prev1.push(item1.skuId)
         }
         return prev1
       }, []))

        return prev
      }, [])

      try {
        await this.$store.dispatch('getDeleteCheckedGoods',skuIdList)

        alert('删除选中商品成功')
        this.getShopCartList()

      }catch (error){
        alert('删除选中商品失败')

      }

    }

  },
  mounted() {
    this.getShopCartList()
  }
}
</script>

<style lang="less" scoped>
.cart {
  width: 1200px;
  margin: 0 auto;

  h4 {
    margin: 9px 0;
    font-size: 14px;
    line-height: 21px;
  }

  .cart-main {
    .cart-th {
      background: #f5f5f5;
      border: 1px solid #ddd;
      padding: 10px;
      overflow: hidden;

      & > div {
        float: left;
      }

      .cart-th1 {
        width: 25%;

        input {
          vertical-align: middle;
        }

        span {
          vertical-align: middle;
        }
      }

      .cart-th2 {
        width: 25%;
      }

      .cart-th3,
      .cart-th4,
      .cart-th5,
      .cart-th6 {
        width: 12.5%;

      }
    }

    .cart-body {
      margin: 15px 0;
      border: 1px solid #ddd;

      .cart-list {
        padding: 10px;
        border-bottom: 1px solid #ddd;
        overflow: hidden;

        & > li {
          float: left;
        }

        .cart-list-con1 {
          width: 4.1667%;
        }

        .cart-list-con2 {
          width: 25%;

          img {
            width: 82px;
            height: 82px;
            float: left;
          }

          .item-msg {
            float: left;
            width: 150px;
            margin: 0 10px;
            line-height: 18px;
          }
        }

        .cart-list-con3 {
          width: 20.8333%;

          .item-txt {
            text-align: center;
          }
        }

        .cart-list-con4 {
          width: 12.5%;

        }

        .cart-list-con5 {
          width: 12.5%;

          .mins {
            border: 1px solid #ddd;
            border-right: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }

          input {
            border: 1px solid #ddd;
            width: 40px;
            height: 33px;
            float: left;
            text-align: center;
            font-size: 14px;
          }

          .plus {
            border: 1px solid #ddd;
            border-left: 0;
            float: left;
            color: #666;
            width: 6px;
            text-align: center;
            padding: 8px;
          }
        }

        .cart-list-con6 {
          width: 12.5%;

          .sum {
            font-size: 16px;
          }
        }

        .cart-list-con7 {
          width: 12.5%;

          a {
            color: #666;
          }
        }
      }
    }
  }

  .cart-tool {
    overflow: hidden;
    border: 1px solid #ddd;

    .select-all {
      padding: 10px;
      overflow: hidden;
      float: left;

      span {
        vertical-align: middle;
      }

      input {
        vertical-align: middle;
      }
    }

    .option {
      padding: 10px;
      overflow: hidden;
      float: left;

      a {
        float: left;
        padding: 0 10px;
        color: #666;
      }
    }

    .money-box {
      float: right;

      .chosed {
        line-height: 26px;
        float: left;
        padding: 0 10px;
      }

      .sumprice {
        width: 200px;
        line-height: 22px;
        float: left;
        padding: 0 10px;

        .summoney {
          color: #c81623;
          font-size: 16px;
        }
      }

      .sumbtn {
        float: right;

        a {
          display: block;
          position: relative;
          width: 96px;
          height: 52px;
          line-height: 52px;
          color: #fff;
          text-align: center;
          font-size: 18px;
          font-family: "Microsoft YaHei";
          background: #e1251b;
          overflow: hidden;
        }
      }
    }
  }
}
</style>
